Memory leak

[argorus]

It happens when I use function setGeometry in a real time (inside a redrawing function of my project). Can you fix it or explain other ways to update geometry of lines?

[spite]

How are you updating the geometry passed to setGeometry? Can i see the relevant piece of code?

[argorus]

for(var i = 0; i < 2; i++)
		{
			var circlesGeometry = new THREE.Geometry();
			if( i == 0)
			{				
				for(var j = 0; j < (cLength*(bSum*20 + 4))/360; j += cLength/360) 
				{
					var v = new THREE.Vector3();
					v.set( 300*Math.cos(j), 300*Math.sin(j), 0);
					circlesGeometry.vertices.push(v);
				}
			}
			else
			{
				for(var j = cLength/2; j < ((cLength*(bSum*20 + 4))/360 + cLength/2); j += cLength/360) 
				{
					var v = new THREE.Vector3();
					v.set( 300*Math.cos(j), 300*Math.sin(j), 0);
					circlesGeometry.vertices.push(v);
				}
			}
			var mesh = scene.getObjectByName("circleX" + i);
			var curve_line = new MeshLine();
			curve_line.setGeometry(circlesGeometry);
			var new_mesh = new THREE.Mesh(curve_line.geometry, mesh.material);
			scene.remove(mesh);
			new_mesh.name = "circleX" + i;
			scene.add(new_mesh);
			new_mesh.position.z = -1900;
		}

[argorus]

It's a part of function "draw" which called using 'requestAnimationFrame'.

[spite]

scene.remove basically removes a child from its parent, but doesn't dispose of it.

THREE.MeshLine keeps its own internal THREE.BufferGeometry and resizes it accordingly. I think in your case you're not disposing of the original THREE.Geometry. Try calling .dispose() on circlesGeometry after .setGeometry and see if it helps with the leak.

[argorus]

Unfortunately, it doesn't work.

[yaodianmi]

I have the same problem

[mfurniss]

I'm seeing a memory leak too. I'm spawning around 10 animated lines per second, and removing the lines when no longer required. The memory heap keeps growing and eventually crashes the app.

[AlexVestin]

You need to do all three geometry.dispose(), material.dispose() and scene.remove and there's no (at least from what I can notice) memory leak.

[argorus]

It helped to me using "mesh.material.dispose()" and "mesh.geometry.dispose()" in all places where i remove objects from scene. Now I haven't any memory leaks in my project. Thanks!